progress on genetic optimization (rosenbrock)
improved pythonlab (error messages)
Merge remote-tracking branch 'mach/optilab' into master-optilab

Conflicts:
	resources/python/variant/optimization/genetic/method.py
Merge branch 'master-optilab' of github.com:hpfem/agros2d into master-optilab
improved pythonlab (better error handling)
test_functions - test -> variant
fixes
Merge remote-tracking branch 'origin/master-optilab' into master-optilab

Conflicts:
	hermes